Anyone ever do this?

I had Mich State +2, but screwed up and put the bet in as  the under?

Geesh I feel like a total moron, not a good feeling

 

You're not alone eyeball.  I've done shit like that a couple of times, just not paying attention, or being in a hurry.  But in my case, like when I bet on the wrong NBA team, and didn't know it until I checked my account at the book, turns out the wrong team covered and I won the bet!

I have accidentally placed a wager on a wrong team, gone back to the casino to exchange it only to have the original wager win.